[markomalley]

To me, a conversion to Catholicism is a big thing - has he discussed it anyplace?

Some. He has, over the years, done some interviews with Raymond Arroyo -- mp3's should be available on the EWTN web site's audio liberary. His wife (Callista) is in the choir at the National Shrine in DC. That's how he got to know (and have theological discussions with) Msgr Rossi, the shrine's rector. I remember seeing him at the Masses there for several years prior to his conversion.

I would view his conversion like that of Robert Bork, a few years earlier.

[WPaCon]

His wife (Callista) is in the choir at the National Shrine in DC.

Am I right in assuming that his previous marriages were annulled then?